Reference Systems

Nomenclature / Taxonomy / Phylogeny / Floras

• International Code of Botanical Nomenclature - ICBN
• International Plant Names Index - IPNI
• W�Tropicos
• Vascular Plant Families and Genera - Brummit
• Names in Current Use - NCU
• Index Nominum Genericorum - ING @ US National Museum of Natural History - Smithsonian Institution - Botany Department; U.S.A.
• Linnaean Plant Names DB @ NHM London, UK
• AlgaeBase
• W³MOST - Index to Mosses
• World Checklist of Ferns
• Index Fungorum - CABI
• Parasitic Plants Database
• Carnivorous Plants Database
• Angiosperm Phylogeny @ MO Botanical Garden
• Euro+Med PlantBase @ BG Berlin-Dahlem; Germany
• Flora Europaea @ RBG Edinburgh; UK
• Standardliste der Farn und Blütenpflanzen Deutschlands - Wisskirchen & Haeupler 1998
• Liste der Gefäßpflanzen Mitteleuropas - Ehrendorfer 1973

Authors, Botanists, Collectors

• IPNI - Brummitt & Powell / Authors of Plant Names
• Index to Botanists @ Harvard University Herbaria; U.S.A.
• Taxonomic Literature ed. 2 - online @ IDC Publishers
  Regnum Vegetabile @ International Association of Plant Taxonomists
  Stafleu & Cowan 1976 ff. - vols. 94, 98, 105, 110, 112, 115, 116;
  Stafleu & Mennega 1992 ff. RV vols. 125, 130, 132, 134, 135, 137

Literature

• Botanico Periodicum Huntianum @ Hunt Institute for Botanical Documentation; U.S.A.
• IPNI - Publications

• KVK — Karlsruher Virtueller Katalog @ Karlsruhe Universität; Germany
• KBD - Kew Bibliographic Databases @ RBG Kew; UK
• Carnegie Mellon OPAC, incl. Hunt Library @ Carnegie Mellon University; U.S.A.

• Botanicus - digitized botanical literature @ Missouri Botanical Garden; U.S.A.
• Biodiversity Heritage Library - digitized biodiversity literature

Geography

• GeoNet Names Server - geographical names gazetteer worldwide @ US Geological Survey; U.S.A.
• Geographical Names Information System GNIS - geographical gazetteer United States and territories @ National Geospatial-Intelligence Agency; U.S.A.
• Austrian Map - geographical names of Austria and online map @ Bundesamt für Eich- & Vermessungswesen; Austria

Herbaria

• Index Herbariorum @ NY Botanical Garden; U.S.A.